Shielded enclosure – Rockwell Automation 160 SSC Series C FRN 7.xx User Manual

Page 78

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C-2

CE Conformity

General Instructions for an EMC Compliant Installation

Shielded Enclosure

• Typical NEMA or IEC metal enclosures are adequate.

• The ground connection of the shielded enclosure must be solidly connected to

the PE terminal of the drive. Good conductivity must be assured – grounding
must provide a low impedance path for high frequency signals.

• All wiring, except input power leads, must use shielded cable.

• Input power, output power and control wiring inside the enclosure must be

physically separated.

• Input power, output power and control wiring outside the enclosure must use

separate shielded cables, or separate conduit.

• Wires do not touch the heatsink.

Recommended Grounding Configuration

Figure C.1

R/L1

S/L2

T/L3

PE

AC

Input Line

Shielded Enclosure

Enclosure Ground Connection

U/T1

Shielded Motor Cable

to TB3

Control
Cabinet

to Motor

V/T2

W/T3

T (L3)

S (L2)

R (L1)

= EMC Tested Shielded Cable Clamp (or Metal Conduit)

When the control circuitry is located outside of the 160 enclosure.

Control Wiring TB3

Motor Wiring TB2

Ground Terminal – PE

Line Power TB1

Line

Filter

DC+

W/T3

1

3 4 5 6 7 8 9 10 11

2

V/T2

U/T1

DC–

BR+

T/L3

S/L2

R/L1

BR–

FAULT

READY

Ground Terminal – PE

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